“Spirometric Reference Equation in Men from 2 Regions of Northern Peru Located Between 0 and 100 Meters above the Sea Level: Cross-Sectional Study”. ACTA MEDICA PERUANA 40, no. 3 (December 2, 2023). Accessed December 26, 2024. https://amp.cmp.org.pe/index.php/AMP/article/view/2695.